The following are sketched in outline form: (1) functional antecedents and their implications for language--assimilation, accommodation, circular reactions/ feedback processes, classification, discrimination, functional equivalence, representation, transformation, communications; (2) semantic antecedents and their implications for language--human beings, objects, qualifiers, causality, space and time, expressive, directive and referential categories; and (3) structural antecedents and their implications for language--elementary and complex schemas. Nonverbal and vocal/verbal evidence is given for each principle listed under the three topics. [Not available in hard copy due to marginal legibility of original document.] (KM)